Car body-bolster.



No. 644,469. Patented Feb. 27, I900. m. B. SCHAFFER. .cAn BODY BOLSTEB.

(Application filed Dec. 11, 1899.)

2 Sheets-$heet I.

(No Model.)

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(Application filed Dec. 11 1899.)

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MORSE B. SOHAFFER, OF LOUIS, MISSOURI, ASSIGNOR TO THE AMERICAN STEEL BODY DOUBLE BOLSTER COMPANY, OF SAME PLACE.

CAR BODY-BOLSTER.

SPECIFICATION forming part of Letters Patent No. 644,469, dated February 27, 1900; Application filed December 11, 1899- Serial No. 739,943. (No model.)

To all whom it may concern.-

Be it known that I, MORSE B. SOHAFF'ER, a citizen of the United States, residing at St. Louis, in the State of Missouri, have invented a new and useful Improvement in Car Body- Bolsters, of which the following is'a specification.

This invention relates to an integral car body-bolster; and it consists in combining therewith the auxiliary airreservoir, and brakecylinder forming parts of the Wellknown Westinghouse or other system of air brake, as hereinafter described and claimed, reference being had to the accompanying drawings, forming partof this specification, whereon- Figure 1 represents a transverse section through the sills of a railroad-car with my improved body-bolster, shown in side elevation, applied thereto; Fig. 2, a top plan of the body-bolster; Fig. 3, a transverse section through the body-bolster, longitudinally to the car, on line 3 3 in Figs. 1 and 2; Fig. 4c, a longitudinal vertical section through the body-bolster and transverse section through the car-sills on lined 4 in Fig. 2; Fig. 5, an end elevation of the body-bolster as seen from the right of Figs. 1 and 2; and Fig. 6, a top plan, to reduced scale, of the car-sills, indicated by broken lines, showing my improved body-bolster applied thereto and combined with the brake-gear of the car, like letters and numerals of reference denoting like parts in all the figures.

The main portion of my improved bodybolster maybe of any desired pattern or configuration, but in the present case is preferably composed of two horizontal side plates a, which are arranged transversely to the car at a suitable distance apart and bear against the under sides of the inner car-sills l 2 3. The side plates a are united at their ends by plates 6, which are at right angles to the side plates at and in the same horizontal plane therewith and bear against the under sides of the side sills 4, the plates on and b forming a rectangular-shaped frame, which practically corresponds to the top plate or arch-bar of an ordinary car body-bolster.

Midway between the side plates at and parallel thereto, respectively, is a beam or girder 0, arranged transversely to the car and united at its ends to the end plates b. The girder c, at its middle portion, bears at the top against the under sides of the inside sills 1 and is preferably rectangular-boX-shaped thereat in crosssection, having the top and bottom horizontal plates 5 5, respectively, and the vertical sides or webs 6, which are united to each other in the middle of the girder c by thevertical cross-web '7 and extend therefrom parallel to each other the entire length of the girder c to their junction at the ends with the end plates 6. Through the Vertical web 7 and through the top and bottom plates 5 5 thereat is formed the central vertical hole 0? for the king-bolt, (not shown,) and beneath the bottom plate 5, around the hole 01, is formed the center plate 6 for engaging the truck-bolster in the usual Well-known manner.

The upper edges of the vertical sides or webs 6, beyond the ends of the top plate 5, are horizontal and preferably in the same plane as the corresponding surfaces of the top plate 5 and the side and end top plates at b and bear against the under sides of the carsills 2 3, the bottom edges or surfaces of the vertical sides or webs 6 inclining upward or diminishing in depth from near the ends of the bottom plate 5 to the junction of the vertical sides or webs 6 with the end top plates 1).

The vertical sides or webs 6 are united to the adjacent side top plates (1 by vertical braces or strengthening-ribs 8, which are disposed along the body-bolster beneath or contiguous to the car-sills 1, 2, and 4 or otherwise, as found most suitable. The ribs 8 extend from the outside of each vertical side or web 6 across the space between the girder c and the corresponding side top plate a and beneath the latter, to which they are united.

Immediately beneath the car-sills 3 the vertical sides or webs 6 are united to each other at the top by cross-bars 9, which correspond in width to and bear against the under sides of the car-sills 3. From the cross-bars 9 the vertical sides or webs 6 incline upward at the top toward the side sills t, where they project above the end top plates 6 and are united thereat to each other and to the plates 17 by vertical cross-bars 10, which form lugs abutting against the inner sides of the side sills 4.

In the body-bolster and transversely there to is formed at a suitable distance from the central hole d toward one side of the car a cylindrical tube f, adapted to be closed at each end by a removable head or cover, as hereinafter more particularly referred to, having the cylindrical wall f, and in the bodybolster, toward the other side of the car, is formed a preferably cylindrical air-chamber g, adapted to hold compressed air and having the surrounding wall g and the closed ends g, the tubefand chamber g extending lengthwise between and beyond the vertical sides or webs b and uniting with one or both of the side top plates a.

The tube fand chamber 9 correspond, respectively, with and perform the same functions as the ordinary brake-cylinder and auxiliary reservoir attached to each car in the well-known \Vestinghouse or analogous system of ainbrake and as such will be hereinafter referred to.

The brake-cylinderf and auxiliary reservoir g are preferably equidistant from the central hole (1 and are adapted at their under portions to form the side bearings h of the body-bolster, or, if desired, the brake-cylinderf and. auxiliary reservoir 9 may be otherwise located across the body-bolster either at equal or unequal distances, respectively, from the central hole (I or conjointly or apart on one side only of the central hole (1, as desired. In such cases when the side bearings hare not in vertical alinement with the brakecylinder f and auxiliary reservoir 9 the side bearings h are formed on the under side of the girder 0 between and beyond the vertical sides or webs (i, as indicated by the hatched broken lines in Figs. 1 and 2.

The body-bolster with all its various parts constructed and arranged substantially as hereinbefore described and with the brakecylinder f and the auxiliary reservoir 9 is made integral throughout and preferably of cast-steel, the whole forming a rigid, compact, and durable structure.

The auxiliary reservoir 9 is fitted With the usual triple valve 11, which connects in the usual manner with the train-pipe 12 (shown piston-rod 16 for operating the brakes in the usual manner, all of Which parts being similar in construction and operation to the corresponding parts of the ordinary and Wellknown air-brake system need no further description.

Through the side top plates a and the end top plates 7) and through the top plate 5 and bearing-bars 9 of the girder c are holes 17, which are suitably arranged for receiving the bolts (not shown) by which the body-bolster is secured to the car-sills 1 2 3 4.

By this invention the brake-cylinderfand auxiliary reservoir g, instead of being separate parts secured to the car-sills by bolts or other fastenings, as at present, are made in one piece with the body-bolster, therebysimplifying the construction and dispensing with fastenings which are liable to work loose and by causing leakage in the pipes destroy the efliciency of the brake when most needed.

lVhat I claim as my invention, and desire to secure by Letters Patent, is

1. A car body-bolster having a cylindrical tube arranged transversely thereto and adapt ed to be closed at each end by a removable head or cover, the cylindrical wall of the said tube being integral with the body-bolster, substantially as described.

2. A car body-bolster havinga closed cham ber adapted to hold compressed air, the Walls of the said chamber being integral with the body-bolster, substantially as described.

3. A car body-bolster having a central hole,

and having the center plate and the side bearings on its under side, and having a cylin drical tube and a closed chamber, the said parts, with the inclosing walls of the said tube and chamber, being integral throughout, substantially as described.

MORSE B. SCHAF FER.

Witnesses:

EDWARD W. FURRELL,

3E0. L. BELFRY. 

